Stop-motion for fulling-machines.



No. 811,075. PATENTED JAN. 30, 1906- A. D. MANSELL.

STOP MOTION FOR PULLING MACHINES.

APPLICATION FILED MAY 29. 1905 WITNESSES: INVENTUR....-

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mswww NITED STATIES PATENT ARTHUR D. MANSELL, OF NEWPORT, MAINE,ASSIGNOR TO THE LEAVIT. AUTOMATIC STOP MOTION COMPANY, A CORPORATION OFMAINE.

STOP-MOTION FOR FULLlNG-WIACHlNES.

Specification of Letters Patent.

Patented J an. 30, 1906.

Application filed May 29, 1906. Serial No. 262,737.

To all whom it 11mg concern.-

Be it known that I, ARTHUR D. MANSELL, a citizen of the United States,residing at N ewport, in the county of Penobscot and State of Maine,have invented new and useful Improvements in Stop-Motions forFulling-Machines,

of which the following is a specification.

My invention relates to improvements in stop-motions forfulling-machines, and more particularly to mechanism for automaticallystopping the machine before-a knot or other obstruction in the clothpasses to the feed-rolls.

Infulling-maehines as at present constructed the cloth passes throughthe meshes of a tilting rack and thence between two rolls, one movable,interposed between the guide-rack and the feed-rolls. The movement ofthe movable roll caused by a knot or other obstruction in the clothcoming between it and the stationary roll sets in motion mechanism forstopping the machine.

My invention consists in means for operating the movable roll wheneverthe tilting rack is moved by an obstruction passing through it, as wellas by the obstruction passing between the fixed and movable rolls.

In the drawings herewith accompanying and making a part of thisapplication, Figure 1 is a perspective view of a fulling-machine with mystop-motion attached thereto, the end being shown open to expose a partof the interior structure of the machine. Fig. 2 is a longitudinalsectional view through the clutch and clutch-operating levers, and Fig.3 is a transverse sectional view taken through the clutch.

Same letters of reference refer to like parts.

In said drawings, A represents the sides of the housing of afulling-maehine, and A a tilting guiderack pivotally mounted therein.Mounted in said housing is a driving-shaft B, having loosely mountedthereon a drivingpulley C, provided with a projecting hub D. Surroundingsaid hub and in frictional engagement therewith is a tightening-band E.Said tightening-band is secured to the enlarged head F of a sleeve F onthe driving-shaft, as seen in Fig. 2. The tightening-band hasupwardly-extending ears H, in each of which is set an interior-threadednut I, the thread on one being cut reversely to that on the other, asshown in Fig. 3. The nuts are held against rotation by means ofset-screws J, as seen in Fig. 3. Adapted to slide on said sleeve is acollar K, and connecting said collar and a threaded bolt L, passingthrough said nuts 1., is a toggle-lever N, one member of saidtoggle-lever being rigidly secured to said bolt and the other memberbeing pivotally secured to said sleeve. Movement of said collaroutwardly or inwardly on said sleeve loosens or tightens thetightening-band, and thus causes the stopping or running of the machine,as the case may be. Any suitable clutch movement maybe substituted, asmy inventiondoes not pertain to the clutch mechanism nor to the meansfor operating it.

Passing now to the mechanism for operating the clutch, I mount betweenthe sides of the frame in front of the drawing-rolls (not shown)twobars, the lower, Q, being stationary, but rotatable, if preferred, theother, It, resting loosely upon the former and having its end looselymounted in slots S in the sides of the housing. The ends of the bar Rare preferably reduced and project through the sides of the machine, asseen at T in Fig. 1. On the outside of that side of the frame on whichthe driving-pulley is mounted is a pivoted lever V, extending across thepath of the projecting end of the movable bar. The lever V may have asliding counterbalance-weight V. Pivotally mounted on. brackets WV,secured to the frame, is an angle-lever X, one arm being pivotallyconnected with the lever V by means of a link Y and the other arm beingprovided with a bifurcated arm X at right angles thereto and having itsends adapted to take into a groove Z in the collar K on thedriving-shaft.

As usually constructed the machine has double guide-racks, and so it isnecessary to provide means for operating the clutch from the oppositeside of the machine. For this purpose a transverse bar E is mounted inthe housing, and on the end which in-ojeets through the side of themachine toward the pulley is pivotally mounted a lever-arm (:l, whichextends under the arm 1-1 on the lever which operates the clutch. On theopposite side of the housing is a corresponding lever arm 1', rigidlysecured to said transverse bar E, and connecting the end of saidlever-arm I and the end of the movable bar is a pivoted link J, arm Iand link J being-shown in dotted lines.

Attached to the guides in any convenient manner, as by eyebolt B, is arigid rod 0, having a loop D at its upper extremity, through which thereduced end of the movable bar passes. When the guide-rack is in itsnormal position, the end of the movable bar should rest loosely upon thebottom of the loop. For convenience the loop is made substantiallycoincident with the slot S in the housing. WVhen double racks are used,each side of the machine and each guide-rack is provided with the rod,with loop at the end, for operating the bar.

The operation of my improved stop-motion is as follows: Whenever a knotor kink in the cloth is too large to pass through the mesh in theguide-rack, it lifts the rack, and with it rod 0, which in turn liftsthe end of the movable bar, causing it to rise and lift the end of leverV. This in turn, through the connecting mechanism already described,throws the sliding collar outwardly on the shaft and loosens thetightening-band, and thereby the frictionsleeve, thus stopping themachine. Any obstruction in the cloth which may pass through the rack orwhich may be formed in the cloth after passing through the rack will onreaching the movable roll raise the roll, as before,

without raising the rack, thus operating to stop the machine, as before.

Having thus described my invention and its use, I claim 1. In astop-motion for fulling-machines, a pivotally-mounted guide-rack, twobars positioned between said guide-rack and the drawing-rolls, onemovable away from the other, and means operable by said rack to stop themachine.

2. In a stop-motion for fulling-machines, a pivotally-mountedguide-rack, two bars positioned in front of the drawing-rolls, onemovable away from the other, a rod having one end attached to theguide-rack and the other end provided with a loop through which the endof said movable bar passes and in the bottom of which it rests and meansoperable by said rack, rod and movable bar to stop the machine.

In testimony whereof I have signed this specification, in presence oftwo subscribing witnesses, this 12th day of April, 1905.

ARTHUR D. MANSELL.

In presence of- A. R. BURRILL, S. IV. CHAsE.

